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Structure and phase transitions in trigonal Cs3Sb2I9 crystals

  • Structure of Inorganic Compounds
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Abstract

The atomic structure of Cs3Sb2I9 single crystals was refined using X-ray diffraction data (sp. gr. P3m1; wR = 1.58% and R = 3.07%). The phase transitions revealed earlier were found to be accompanied by the appearance of superstructural reflections. At T c1 = 86 K, the reflections indicating doubling of the c parameter. At T c2 = 73 K, a first-order phase transition takes place accompanied by “freezing” of the satellites h, k + 1/2, l + 1/2 reflections. In the temperature range from 73 to 78 K, an incommensurate phase providing the satellites h, k + 1/2 + δ, l + 1/2 is formed.

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Authors and Affiliations

  1. Shubnikov Institute of Crystallography, Russian Academy of Sciences, Leninskii pr. 59, Moscow, 117333, Russia

    M. S. Novikova & I. P. Makarova

  2. Department of Physics, University of Helsinki, Helsinki, Finland

    M. K. Blomberg

  3. Institute of Solid-State Physics, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432, Russia

    B. Sh. Bagautdinov

  4. Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, Russia

    I. P. Aleksandrova

Authors
  1. M. S. Novikova
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  2. I. P. Makarova
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  3. M. K. Blomberg
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  4. B. Sh. Bagautdinov
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  5. I. P. Aleksandrova
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Translated from Kristallografiya, Vol. 46, No. 1, 2001, pp. 33–36.

Original Russian Text Copyright © 2001 by Novikova, Makarova, Blomberg, Bagautdinov, Aleksandrova.

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Novikova, M.S., Makarova, I.P., Blomberg, M.K. et al. Structure and phase transitions in trigonal Cs3Sb2I9 crystals. Crystallogr. Rep. 46, 26–29 (2001). https://doi.org/10.1134/1.1343121

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  • DOI: https://doi.org/10.1134/1.1343121

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